tailor.h

GNU 系统开发的基于Iz77语法的压缩 学习lz77压缩算法

/* tailor.h -- target dependent definitions
 * Copyright (C) 1992-1993 Jean-loup Gailly.
 * This is free software; you can redistribute it and/or modify it under the
 * terms of the GNU General Public License, see the file COPYING.
 */

/* The target dependent definitions should be defined here only.
 * The target dependent functions should be defined in tailor.c.
 */

/* $Id: tailor.h,v 0.14 1993/03/18 18:14:56 jloup Exp $ */

#if defined(__MSDOS__) && !defined(MSDOS)
#  define MSDOS
#endif

#ifdef MSDOS
#  ifdef __GNUC__
     /* DJGPP version 1.09+ on MS-DOS.
      * The DJGPP 1.09 stat() function must be upgraded before gzip will
      * fully work.
      * No need for DIRENT, since <unistd.h> defines POSIX_SOURCE which
      * implies DIRENT.
      */
#    define near
#  else
#    define MAXSEG_64K
#    ifdef __TURBOC__
#      define NO_UTIME
#    else /* MSC */
#      define HAVE_SYS_UTIME_H
#      define NO_UTIME_H
#    endif
#  endif
#  define PATH_SEP2 '\\'
#  define PATH_SEP3 ':'
#  define MAX_PATH_LEN  128
#  define NO_MULTIPLE_DOTS
#  define MAX_EXT_CHARS 3
#  define Z_SUFFIX "z"
#  define NO_CHOWN
#  define PROTO
#  define STDC_HEADERS
#  define NO_SIZE_CHECK
#  define casemap(c) tolow(c) /* Force file names to lower case */
#  include <io.h>
#  define OS_CODE  0x00
#  define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
#  if !defined(NO_ASM) && !defined(ASMV)
#    define ASMV
#  endif
#else
#  define near
#endif

#ifdef OS2
#  define PATH_SEP2 '\\'
#  define PATH_SEP3 ':'
#  define MAX_PATH_LEN  260
#  ifdef OS2FAT
#    define NO_MULTIPLE_DOTS
#    define MAX_EXT_CHARS 3
#    define Z_SUFFIX "z"
#  endif
#  define NO_CHOWN
#  define PROTO
#  define STDC_HEADERS
#  define HAVE_SYS_UTIME_H
#  define NO_UTIME_H
#  define DIRENT
#  define casemap(c) tolow(c)
#  include <io.h>
#  define OS_CODE  0x06
#  define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
#endif

#ifdef __EMX__
#  define EXPAND(argc,argv) {_response(&argc, &argv); _wildcard(&argc, &argv);}
#endif

#ifndef MAXSEG_64K
#  define fcalloc(items,size) malloc((unsigned)(items)*(unsigned)(size))
#  define fcfree(ptr) free(ptr)
#else
#  ifdef __TURBOC__
#    include <alloc.h>
#    define DYN_ALLOC
     /* Turbo C 2.0 does not accept static allocations of large arrays */
     void * fcalloc (unsigned items, unsigned size);
     void fcfree (void *ptr);
#  else /* MSC */
#    include <malloc.h>
#    define fcalloc(nitems,itemsize) halloc((long)(nitems),(itemsize))
#    define fcfree(ptr) hfree(ptr)
#  endif
#endif

#if defined(VAXC) || defined(VMS)
#  define PATH_SEP ']'
#  define PATH_SEP2 ':'
#  define SUFFIX_SEP ';'
#  define NO_MULTIPLE_DOTS
#  define Z_SUFFIX "-z"
#  define RECORD_IO 1
#  define casemap(c) tolow(c)
#  define OS_CODE  0x02
#  define OPTIONS_VAR "GZIP_OPT"
#  define STDC_HEADERS
#  define NO_UTIME
#  include <file.h>
#  ifdef VAXC
#    define NO_FCNTL_H
#    define unlink delete
#    include <unixio.h>
#  endif
#endif

#ifdef AMIGA
#  define PATH_SEP2 ':'
#  define STDC_HEADERS
#  define casemap(c) tolow(c) /* Force file names to lower case */
#  define OS_CODE  0x01
#  define ASMV
#  ifdef __GNUC__
#    define DIRENT
#    define HAVE_UNISTD_H
#    define RETSIGTYPE int
#  else /* SASC */
#    define NO_STDIN_FSTAT
#    define SYSDIR
#    define NO_SYMLINK
#    define NO_CHOWN
#    define NO_FCNTL_H
#    include <fcntl.h> /* for read() and write() */
#    define direct dirent
     extern void _expand_args(int *argc, char ***argv);
#    define EXPAND(argc,argv) _expand_args(&argc,&argv);
#  endif
#endif

#if defined(ATARI) || defined(atarist)
#  ifndef STDC_HEADERS
#    define STDC_HEADERS
#    define HAVE_UNISTD_H
#    define DIRENT
#  endif
#  define ASMV
#  define OS_CODE  0x05
#  ifdef TOSFS
#    define NO_SYMLINK
#    define NO_MULTIPLE_DOTS
#    define MAX_EXT_CHARS 3
#    define Z_SUFFIX "z"
#    define NO_CHOWN
#  endif
#endif

#ifdef MACOS
#  define OS_CODE  0x07
#endif

#ifdef WIN32
#  define OS_CODE  0x0b
#endif

#ifdef TOPS20
#  define OS_CODE  0x0a
#endif

#ifndef unix
#  define NO_PTY /* no pseudo ttys */
#endif

	/* Common defaults */

#ifndef OS_CODE
#  define OS_CODE  0x03  /* assume Unix */
#endif

#ifndef PATH_SEP
#  define PATH_SEP '/'
#endif

#ifndef casemap
#  define casemap(c) (c)
#endif

#ifndef OPTIONS_VAR
#  define OPTIONS_VAR "GZIP"
#endif

#ifndef Z_SUFFIX
#  define Z_SUFFIX ".z"
#endif
#define Z_LEN strlen(Z_SUFFIX)

#ifndef EXPAND
#  define EXPAND(argc,argv)
#endif

#ifndef RECORD_IO
#  define RECORD_IO 0
#endif

#ifndef SET_BINARY_MODE
#  define SET_BINARY_MODE(fd)
#endif